<template>
    <div class="icons">
        <swiper :options="swiperOption">
            <swiper-slide v-for="(page,index) of pages" :key="index">
                <div 
                    class="icon" 
                    v-for="item of page" 
                    :key="item.id"
                >
                    <div class="icon-img">
                        <img class="icon-img-content" :src='item.imgUrl'/>
                    </div>
                    <p class="icon-desc">{{item.desc}}</p>
                </div>
            </swiper-slide>
        </swiper>
    </div>
</template>

<script>
export default {
    name:'HomeIcons',
    props:{
        list:Array
    },
    data(){
        return{
            swiperOption:{
                autoplay:false
            }
        }
    },
    computed: {
        pages(){
            const pages =[]
            this.list.forEach((item,index)=>{
                const page =Math.floor(index/8)
                if(!pages[page]){
                    pages[page]=[]
                }
                pages[page].push(item)
            })
            return pages
        }
    },
}
</script>

<style lang="stylus" scoped>
    @import '~styles/varibles.styl'
    @import '~styles/mixins.styl'
    // 没写之前.swiper-container的高度没有icon一样高 swiper-container自带overflow hidden
    .icons >>>.swiper-container
        height:0
        padding-bottom:50%
    .icons
        margin-top:.1rem
        .icon
            overflow:hidden
            width:25%
            height:0
            float:left
            padding-bottom:25%
            position:relative
            .icon-img
                position:absolute
                top:0
                left:0
                right:0
                bottom:.44rem
                box-sizing:border-box
                padding:.1rem
                .icon-img-content
                    display:block
                    margin:0 auto 
                    height:100%
            .icon-desc
                position:absolute
                left:0
                right:0
                bottom:0
                line-height:.44rem
                height:.44rem
                text-align:center
                color: $darkTextColor
                ellipsis()
</style>